| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ea4a8bd801b3f5f5fa880dd0f7784164 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T428-31913 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B32B27-32 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B32B27-32 |
| filingDate |
1997-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1999-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eeda8c77d2eb80deea816385ba97f27d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c7b252781386d751b46fec776db3c950 |
| publicationDate |
1999-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5989725-A |
| titleOfInvention |
Clear high molecular weight film |
| abstract |
A polymeric multilayer film is disclosed that has improved optical qualities while having structural qualities that are not significantly compromised. The film is composed of outer film layers of a low polydispersity polymer which are placed around at least one inner film layer of a high molecular weight high density polyethylene (HDPE) polymer. The outer film layer polymer has a polydispersity of from about 1 to about 4. In a preferred embodiment this low polydispersity polymer is formed in the presence of a metallocene catalyst. The inner film layer high molecular weight HDPE polymer has a melt index of less than 0.1 and a density of at least about 0.940 g/cm3. Any of the layers of the film may be constructed of polymer blends. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2004127119-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009149613-A1 |
| priorityDate |
1997-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |